Markup Validation Service - W3C Markup Validation Service, a free service that checks Web documents in formats like HTML and XHTML for conformance to W3C Recommendations and other standards.

Menu and Navigation Generators - This tool will hepl you create different types of menus and toolbars.

META Analyzer - This tool will analyze a website's meta tags. Although the use of meta data is certainly in question, analyzing a competitors keyword and description meta values is a good way to find ideas for key terms and effective copy for your website.

Meta Tag Generator - Use this tool to generate a search engine friendly Head Tag for your web site. Keep your meta tags free of information that only slows down a search engine robot crawl.

Meta Tag Generator - If you're new to web development and search engine optimization, you may find this tool useful for ensuring your meta tags are correctly formed. The tool has two fields - Keywords and Description

Meta Tag Generator - This Meta Tag Generator will read the page you specify, remove common words from it, and pick the most used words on the page. It will then generate a Meta Keywords tag using the words it has found. Extra weight will be given to words in a heading tag.

Meta Tag Optimization - Meta Tags Checker - Meta tag optimization is an important part of SEO and using this meta tag service can help you to optimize key terms for higher search engine ranking.

Metatag Generator - This tool will hepl you create new or edit existing Meta tags for your website.

Mod_rewrite rewriterule generator - This mod_rewrite RewriteRule generator will take a dynamic url given to it, and generate the correct syntax to place in a .htaccess file to allow the url to be rewritten in a spiderable format. The apache module mod_rewrite converts urls in a certain format to another format, and can be very useful in helping a site with dynamic content to be indexed. For more information on mod_rewrite, visit the apache documentation site.

MSN Position Search - This tool will show you position entered URL have in MSN search results.

MSN Rankings - This tool will show you rank of keyword and URL on MSN search.

Myriad Search - This tool allow you to get advanced search results from Google, Yahoo!, MSN and Ask Jeeves at once.